Elder-Sim: A Psychometrically Validated Platform for Personality-Stable Elderly Digital Twins

ArXi:2604.16343v1 Announce Type: cross Background: LLMs enable patient-facing conversational agents, creating a pathway toward digital twins that capture older adults' lived experiences and behavioral responses across time. A central barrier is personality drift -- inconsistent trait expression across repeated interactions -- which undermines reliability of generated trajectories and intervention-response simulation in geriatric care.